Home / 266,621.43-399,489.25-187,569.57

Finding the Fourth Proportional to 266,621.43, 399,489.25 and 187,569.57

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Solution

The fourth proportional to 266,621.43, 399,489.25 and 187,569.57 is: 281,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,621.43 : 399,489.25 = 187,569.57 : x
  2. Step 2: Convert to fraction form
    266,621.43/399,489.25 = 187,569.57/x
  3. Step 3: Cross multiply
    266,621.43x = 399,489.25 × 187,569.57
  4. Step 4: Simplify right side
    266,621.43x = 74,932,026,842.12
  5. Step 5: Solve for x
    x = 74,932,026,842.12/266,621.43
  6. Step 6: Final answer
    x = 281,042.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.